SEC Filing Update: #KOP Koppers Holdings Inc. : $40.75

Sector: Basic Materials | YTD: 🔼+ 52.85% The SEC disclosed Today (22-OCT-2026) that SIMCOE CAPITAL MANAGEMENT LLC has DECREASED #KOP Shares by -24.92% 🔴 * Previous Holdings: 1.42M Shares * Current Holdings: 1.06M Shares * Decrease -352.88K * Decreased (%)-24.92% * Ownership: 5.6% https://www.thinksabio.com/reports/isr/KOP 📌 Institutional activity in the last 30 days for #KOP: • DIMENSIONAL FUND ADVISORS LP – Increased holdings by 28,280 shares (08-OCT-2026) 📈 Stay ahead of institutional buy/sell moves — Sign up free at ThinkSabio: Sign Up Free → 🐦 See this update on X: https://x.com/Thinksabio/status/2113397722237526477